.The `nm-cloud-setup` utility now supports IMDSv2 configuration
Users can configure an AWS Red Hat Enterprise Linux EC2 instance with Instance Metadata Service Version 2 (IMDSv2) with the `nm-cloud-setup` utility. To comply with improved security that restricts unauthorized access to EC2 metadata and new features, integration between AWS and Red Hat services is necessary to provide advanced features. This enhancement enables the `nm-cloud-setup` utility to fetch and save the IMDSv2 tokens, verify an EC2 environment, and retrieve information about available interfaces and IP configuration by using the secured IMDSv2 tokens.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:7118
VERIFIED in NetworkManager-1.40.16-4.el8: Token is requested: Hypertext Transfer Protocol PUT /latest/api/token HTTP/1.1\r\n [Expert Info (Chat/Sequence): PUT /latest/api/token HTTP/1.1\r\n] [PUT /latest/api/token HTTP/1.1\r\n] [Severity level: Chat] [Group: Sequence] Request Method: PUT Request URI: /latest/api/token Request Version: HTTP/1.1 Host: 169.254.169.254\r\n Accept: */*\r\n X-aws-ec2-metadata-token-ttl-seconds: 180\r\n \r\n [Full request URI: http://169.254.169.254/latest/api/token] [HTTP request 1/1] [Response in frame: 2] And then used: Hypertext Transfer Protocol GET /2018-09-24/meta-data/network/interfaces/macs/ HTTP/1.1\r\n [Expert Info (Chat/Sequence): GET /2018-09-24/meta-data/network/interfaces/macs/ HTTP/1.1\r\n] [GET /2018-09-24/meta-data/network/interfaces/macs/ HTTP/1.1\r\n] [Severity level: Chat] [Group: Sequence] Request Method: GET Request URI: /2018-09-24/meta-data/network/interfaces/macs/ Request Version: HTTP/1.1 Host: 169.254.169.254\r\n Accept: */*\r\n X-aws-ec2-metadata-token: AQAAALH-k7i18JMkK-ORLZQfAa7nkNjQbKwpQPExNHqzk1oL_7eh-A==\r\n \r\n [Full request URI: http://169.254.169.254/2018-09-24/meta-data/network/interfaces/macs/] [HTTP request 1/1] [Response in frame: 4]